Side Lying Lat Stretch — how to, muscles worked, alternatives

How to do the Side Lying Lat Stretch

Lie on your side, bottom arm overhead under your head.
Sweep your top arm over your head to the bottom hand.
Reach long and feel the stretch along your side.
Hold, breathing slowly, then switch sides.

Full technique — 6 steps

Lie on your side with your legs straight, one on top of the other.
Extend your bottom arm on the floor past your head and rest your head on it.
Start with your top arm in front of your body, hand on the floor.
Sweep your top arm up over your head and lower your hand toward your bottom hand.
Reach long through the top arm until you feel the stretch along the side of your upper back.
Hold the position and breathe slowly, then return the arm and repeat on the other side.

Common mistakes

Rolling onto the back during the hold
Shrugging the top shoulder
Flaring the ribs upward
Bending the top elbow
Bouncing the arm to go deeper

Form cues

Reach long through top arm
Relax the top shoulder
Keep ribs down
Breathe slowly

Where to start and where to go next

Same muscles, same movement. Too hard for now — step down; once it gets easy — step up.

This exercise Side Lying Lat Stretch Beginner
Harder Side Lying Stability Ball Lat Stretch Beginner

Quick answers

What muscles does the Side Lying Lat Stretch work?

Primary: Lats 8/10, Teres major 6/10. Also works: Serratus anterior 4/10, Shoulders 3/10.

When should I do the Side Lying Lat Stretch in a workout?

Warm-up. Done at the start to get the body ready. ≈ 3 min with rest.

How many sets and reps of the Side Lying Lat Stretch?

Strength: 1–2 sets of 20–30 reps, rest 15 s, 6 reps in reserve. Muscle growth: 1–2 sets of 20–30 reps, rest 15 s, 6 reps in reserve. Endurance: 1–2 sets of 30–45 reps, rest 15 s, 6 reps in reserve.